(Reuters) - Wal-Mart Stores Inc &lt;WMT.N&gt; posted disappointing quarterly sales on Thursday as shoppers in key markets like the United States battled high gasoline prices and unemployment, while store traffic continued to decline in China. Full story

Related Photos

Sam's Club worker Rosetta Brown, who skipped her shifted today, protests outside a Walmart store in Chicago, November 23, 2012. Black Friday, the day following the Thanksgiving Day holiday, has traditionally been the busiest shopping day in the United States. REUTERS/John Gress (UNITED STATES - Tags